/Engine/Source/Runtime/Experimental/FieldSystem/Source/FieldSystemEngine/Public/Field/FieldSystemObjects.h
Sphere scalar field that will be defined only within a sphere
[URadialFalloff](API\Runtime\FieldSystemEngine\Field\URadialFalloff) * SetRadialFalloff ( float Magnitude, float MinRange, float MaxRange, float Default, float Radius, FVector Position, EFieldFalloffType Falloff )